Schutzvorrichtung mit einer Aufnahme für mindestens eine Chipkarte

The invention relates to a protective device with a receptacle for at least one smart card and with a protective jacket, the two wound onto and forms push toable wing portions, the shield has at least an electrically conductive shield layer and the collapsed have in each case in the receptacle provided for a smart card electromagnetically therebetween, wherein at least one wing part a ferrite film.

Known State of the Art is a protective device (WO 2010/097342 A2) from the, the shields allows a non-contact reading a smart card, at the same time, however, a further smart card to a contactless reading. For this purpose, provided on an electrically conductive shield layer a ferromagnetic material with a high relative permeability. These has lead to can be read, with the ferromagnetic material on the side that the RFID chip card, whereas the electrically conductive shield layer prevents the reading out the other RFID card. To this end the guard has a protective jacket on, the wing parts have two movable up and collapsible forms, wherein the wing portions per the electrically conductive shield layer. The wing portions Are collapsed, the smart card is electromagnetically shields between said wings. Despite such a protection device an unconscious or unauthorized disadvantage can be carried out with one of the RFID chip cards Contactless communication. Despite an electromagnetic shield of the IC cards on this damage is also showed.

The invention is based on the task, starting from the initially described State of the Art, to create a protective device, which enable the readout of a chip card simply manageable, yet can prevent unwanted or unauthorized use of the smart card but a. Also the guard is to protect the chip card reliably to electromagnetic radiation.

The invention solves the stated problem thereby that the ferrite film direction for folded wing portions is provided between the shield layer and the receiver for the smart card, to lift the electromagnetic shield of the guard in unfolded wing portions.

The ferrite film direction for folded wing parts between the shield layer and the receiver for the actual smart card provided, this smart card in the closed state of the protection device can reliably be protected from electromagnetic radiation and thus to an unintentional reading out. Nevertheless, but the ferrite film can cancel the electromagnetic shield of the guard in unfolded wing portions reliably, to allow such a reading the smart card. The according to the invention between the shield layer and the receiver for the smart card provided for reading the RFID card Close in other words the magnetic circuit can ferrite film, so that the magnetic field must not penetrate the shield layer.

Particularly but it deals with the invention, this from that the protection device can protect the card by means of the ferrite film improved to electromagnetic radiation. The electromagnetic shield the shield layer, for example, may be configured from instruction sheet metal , by the eddy currents induced by the external magnetic field is based on the. These eddy currents produce a further magnetic field, the magnetic field counteracts the external. This can prevent a read from the card is mostly successful, nevertheless still parts of both magnetic fields can penetrate the card to be protected. In the presence of strong magnetic fields lead to damage to the card could These. Since represents a good magnetic conductor but the ferrite film, remaining magnetic fields are deflected by the card can reliably by the ferrite film. A robust and simple-handleable Protection device, the electromagnetic protection for the smart card in the closed state forms a desired mould for a firmness and stolidity but at the same time allows the read out of the chip card in the open state, can be so made.

Generally is formed may be mentioned that the guard than Envelope, pocket, Purse, Case etc.. Continue is generally mentioned that the smart card 4 designated EC-card, credit card, contactless chip card, etc. may be formed.

The protective jacket Applies plastic wrap to, the guard can be made simply and at the same time can the smart card from the shield layer or an insulation. Ferrite film of arrival. This can reduce the risk of damage to the chip card, inter alia, by electrically charging the shield layer.

A particularly advantageous expression of the protection device can be achieved, when the plastic [...] Ile screen layers comprises a weld at the edge of the. This is no material of the shield freely accessible to the protective sheath, whereby possible violations can be avoided. The shield layer by the welding seams of the plastic wrap are also in their positions fixed and the ferrite film, whereby a structurally simple protective sheath can arise.

The protective device can be further improved, if the plastic sleeve at the edge of the wing portions comprises a weld. This can in other words simple production of the guard by welding together an inner and an outer plastic film can be cut to length in one process step wherein the wing portions allow.

The protective jacket Applies leather covering on, and at the same time a firm Protection device can simply be made by the shield layer or an insulation can the smart card. Ferrite film of arrival. This can reduce the risk of damage to the chip card, inter alia, by electrically charging the shield layer.

A particularly advantageous expression of the protection device can be achieved, when the is provided with a seam screen layersleather covering at the edge of the. This is no material of the shield freely accessible on the protective device, whereby possible violations can be avoided. Also by the seams are fixed and can slip within the ferrite film leather coveringscreen layers and the not so with respect to the holder of the smart card. A structurally simple protection device can be so made.

The protective device can be further improved, if the leather covering at the edge of the wing portions is provided with a seam. This can allow in other words simple production of the guard by stitching an inner and an outer leather layer.

The chip card accepted screen layers ceilings for folded wing parts at least over the entire surface from a, can take place so that a complete shield of the smart card may occur and also stray fields penetrate, at the edge of the screen, the smart card are not. Industrialists unauthorized reading out the chip card can be prevented so or a damage.

A manufacturing execution of the protection device can easily arise, when shield layer are coextensive formed and ferrite film.

Is on the receptacle for the chip card provided with the wing piece of the ferrite film, the smart card in the preferred position for their protection in the closed state can simply selectableness are brought in the open state of the guard at the same time.

The wing piece Applies with the ferrite film on a transponder is provided between the ferrite film and the receiver for the smart card, this transponder can be used, so as to store important data of the owner of the guard are protected, the in mind, in leakage reading out.

The mount which is attached to the protective sheath Applies loosely receiving compartments on a plurality of mutually, a plurality of cards can be protected before unwanted reading within the protective sheath. By unfolding the protective sheath and folding out of the way of the other chip cards, nevertheless a certain card for reading out can be selected.

The electrically conductive electrically conductively connected to one another at least in regions of both blade parts screen layers Are, the two form a faraday'sscreen layers in the closed state of the guard cage and can shield the smart card before electromagnetic waves particularly effective. In the open state can be ensured above the ferrite film arranged selectableness nevertheless the smart card.

Low-cost and turned out to be especially effective in the shield itself can, if the conductive shield layer comprises tinplate, in particular thereof.

In the figures is, for example, the embodiment variant shown in more detail on the basis of two invention article. Shown

Fig. 1 a top view of a protective device with the pushed-in smart card according to a first embodiment,

Ll-ll 1 2 a sectional view according the Fig. Fig.,

Fig. 3 a top view of an open protection device according to a second embodiment and with and transponder more in-stretched smart card

4 a sectional view according to IV-IV of 3 Fig. Fig..

Fig. 1 or respectively of the associated cut in a, for example, with a receptacle 2 1 2 show Fig. protective device 3 for a chip card in the unfolded state. The in Figure 3 is represented with 3 a contactless RFID card or contactless chip card chip card chip contacts. 4 but also for other smart cards use of the protective device 1 is 3 The conceivable. The protective device 1 has a protective jacket 5, the two wound onto and forms push toable wing portions 6, 7. This are connected via a central pivot bearing 24. In each of the wing portions 6, 7 is an electrically conductive shield layer 8, 9 arranged. In the collapsed condition, the closer is not represented here, these were protecting screen layers 8, 9 through which the housing 3 before magnetic and/or electromagnetic waves 2 inserted smart card. This electrically conductive screen layers 8, 9 are of an electrically conductive metal, such as tinplate, made. Also the wing part 6 has a ferrite film 10, between 8 and the receptacle 2 for the smart card 3 is disposed shield layer. The contactless reading out the chip card 10 in the unfolded state allows these ferrite film 3 in the unfolded state by the Closing. The magnetic circuit 10 is a good magnetic conductor which is ferrite film, without that the electrically conductive shield layer 8 is exposed to a magnetic field. Therefore, no eddy currents are, the the magnetic field to counteract, can, in the electrically conductive shield layer induces 8. In the collapsed condition of the guard 1 blocked the shield layer 8, 9 electromagnetic radiation. Also a possibly the electrically conductive shield layer 10 conducts the ferrite film 8 penetrating magnetic field at the smart card 3 past. So the card can be read out and 3 in the open state is nevertheless reliably protected in the closed state of the protection device 1.

The mantle 11 is carried out as a plastic envelope 5, so as to protect the 8 embed screen layers , 9 and 10 and the smart card ferrite film. This plastic wrap 12 13 11 consists of an inner plastic film and an outer plastic film, 24 are welded to the pivot bearing at the edges and also the. This along the edge of the shield layer 8, 9 extending weld seam 12 connects not only the two plastic films 14, 13, but also fixed the shield layer 8, 9 and 10 at the edge of the wing portions 14 extends the weld. At ferrite film 6, 7 and the plastic [...] 11 closes a structurally simple and thus cost-effective occurs. Thus Ile 1 protection device.

In the embodiment of the protective jacket 3 and 4 5 100 according to Fig. Fig. protection device is 21 carried out as leather covering , to embed screen layers to protect the 8, 9 and 10 ferrite layers , 15 and the smart card 3. This leather covering 21 consists of an inner leather layer 18 and an outer layer of leather 19, 24 are sewn to the pivot bearing at the edges and also the. The also along the edge of the shield layer 8, 9 not only the two seam running leather layers 20 connects 18, 19, but also fixed the shield layer 8, 9 and 10 ferrite film, the seam at the edge of the wing portions 20 6 15 runs. At, 7 and 21 occurs leather covering closes the and thus a design variant of a simple constructive. Thus low-cost protection device 100.

8 1 are represented the screen layers As in Fig., 9 at least of such a size that when folded wing portions 6, 7 a chip card accepted 3 is covered over the entire surface. The influence of flux, the at the edges of the 8 screen layers , 9 occur is avoided so. Since the ferrite film 10 is co-extensive with the shield layer 8, both layers 14 are fixed by the edge-side weld. The protective device 1 is therefore constructively easy to manufacture.

Pursuant Fig. 1 2 10 the receptacle 6 with the ferrite film is on the wing piece 3 arranged for the smart card. By said dovetail receptacle 3 is simply brought into the preferred position 2 the smart card for their protection in the closed state while selectableness in the opened state of the protection device 1.

In the embodiment variation is between 3 and the associated cut in 4 Fig. Fig. of 10 ferrite film, 15 and shield layer 8, 16 present an electrically nonconductive insulating layer 9. Additionally, a transponder 17 18 7 15 and the inner leather layer in the wing portion disposed between the ferrite film. This transponder 17 is used for storing personal data of the owner of the protection device. Medical data, such as blood group can These, emergency contacts or other sensitive data be.

3 also has an additional receptacle 22 100 The protective device in accordance with two mutually loose Fig. holding compartments 25, 26 on. So more smart cards are protected within the protective device 100 before unwanted reading 3. When unfolding of the protective device 100 is selected by folding out of the way of the other chip cards 3 for reading out a particular smart card 3.

The electrically conductive screen layers 8, 9 of both wing portions 6, 7 are correspondingly Fig. 3 or. Fig. 4 connected to each other. A screen layers 23 combines the best of the electrically conductive material 8, 9 in the region of the pivot bearing 24 ago. 3 this takes place via two areas 27 Fig. Pursuant, 28, are also more or less, however, a full-area connection of the two regions or screen layers 8, 9 conceivable. The so screen layers connected 8, 9 form faraday's cage 100 a in the closed state of the protection device. The smart card 2 or 3 in the receptacle 22 as well as the transponder 100 in the collapsed condition of the guard 17 are therefore particularly well protected from electromagnetic radiation. Overlying the ferrite film is 10 selectableness In the open state the, 3 and of the transponder 17 nevertheless guaranteed 15 arranged smart card.